cas 187148-77-2, 9-(2-ETHYLHEXYL)CARBAZOLE 97 | Articles data ｜lookchem

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187148-77-2

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Efficient synthesis of N-alkyl-2,7-dihalocarbazoles by simultaneous carbazole ring closure and N-alkylation
The N-alkyl-2,7-dihalocarbazole as the main product was formed by the reaction of 4,4′-dihalo-2-nitrobiphenyl with aromatic nitro compound and trialkyl phosphite. The presence and crucial role of aromatic nitro compound causes simultaneous carbazole ring closure and N-alkylation unlike the Cadogan ring closure where non-alkylated carbazole is formed as a main product. In addition, the mixture of aromatic nitro compound and trialkyl phosphite was found to be a possible N-alkylating agent for heterocycles, such as carbazole or indole.
Vyprachticky, Drahomír,Kmínek, Ivan,Pokorná, Veronika,Cimrová, Věra
experimental part
p. 5075 - 5080
(2012/07/28)

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Chemical Properties

Boiling Point: 40 °C3 mm Hg(lit.)
Flash Point:>230 °F
Density: 1.004 g/mL at 25 °C(lit.)
Vapor Pressure: 0mmHg at 25°C
Refractive Index: n20/D 1.5949(lit.)
PSA: 4.93000
LogP: 6.01090

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